jEdit is a mature and well-designed programmer's text editor with 7 years of development behind it.
Some of jEdit's features include:
- Built-in macro language; extensible plugin architecture. Dozens of macros and plugins available.
- Plugins can be downloaded and installed from within jEdit using the "plugin manager" feature.
- Auto indent, and syntax highlighting for more than 130 languages.
- Supports a large number of character encodings including UTF8 and Unicode.
- Folding for selectively hiding regions of text.
- Word wrap.
- Highly configurable and customizable.
- Every other feature, both basic and advanced, you would expect to find in a text editor.